Load Specifications
Load data in caliber 7 x 57 with .284 | 160gr | NorthFork Bonded Core bullet and 89 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 86% | 50,038 psi | 88% | 2513 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 49,066 psi | 87% | 2500 fps | 96.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 40,118 psi | 71% | 2454 fps | 95.9% |
| Accurate 4064 | <<locked>> | 88% | 50,009 psi | 88% | 2556 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 49,095 psi | 87% | 2625 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 84% | 50,502 psi | 89% | 2579 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 88% | 48,515 psi | 86% | 2533 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 82% | 49,763 psi | 88% | 2536 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 50,198 psi | 89% | 2513 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 49,545 psi | 88% | 2680 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 48,182 psi | 85% | 2552 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 48,878 psi | 86% | 2572 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 98% | 50,618 psi | 89% | 2677 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 92% | 48,109 psi | 85% | 2657 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,667 psi | 68% | 2487 fps | 98.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,989 psi | 76% | 2631 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 49,792 psi | 88% | 2585 fps | 99.4% |
| Bofors RP3 | <<locked>> | 88% | 48,530 psi | 86% | 2569 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 48,950 psi | 87% | 2536 fps | 96.4% |
| Hodgdon BL-C2 | <<locked>> | 82% | 48,573 psi | 86% | 2559 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 49,313 psi | 87% | 2575 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 94% | 48,660 psi | 86% | 2618 fps | 97.1% |
| Hodgdon H4350 | <<locked>> | 92% | 49,763 psi | 88% | 2585 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 84% | 50,966 psi | 90% | 2589 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,415 psi | 89% | 2612 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 50,111 psi | 89% | 2618 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 48,834 psi | 86% | 2644 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,491 psi | 63% | 1588 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 49,023 psi | 87% | 2543 fps | 99.9% |
| IMR 3031 | <<locked>> | 84% | 51,010 psi | 90% | 2575 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 51,097 psi | 90% | 2566 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 86% | 51,126 psi | 90% | 2546 fps | 97.4% |
| IMR 4350 | <<locked>> | 96% | 49,124 psi | 87% | 2562 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 92% | 50,778 psi | 90% | 2569 fps | 97.2% |
| IMR 4831 | <<locked>> | 98% | 49,995 psi | 88% | 2621 fps | 99.4% |
| IMR 4895 | <<locked>> | 86% | 50,096 psi | 89% | 2602 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 82% | 49,763 psi | 88% | 2536 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 49,879 psi | 88% | 2556 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 50,285 psi | 89% | 2513 fps | 99.8% |
| Lovex S062 | <<locked>> | 88% | 50,923 psi | 90% | 2562 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 50,111 psi | 89% | 2566 fps | 98.4% |
| Lovex S070 | <<locked>> | 96% | 50,662 psi | 90% | 2592 fps | 97.6% |
| Norma 201 | <<locked>> | 84% | 49,327 psi | 87% | 2530 fps | 100% |
| Norma 202 | <<locked>> | 84% | 49,995 psi | 88% | 2536 fps | 100% |
| Norma 203B | <<locked>> | 88% | 51,111 psi | 90% | 2608 fps | 99.9% |
| Norma URP | <<locked>> | 96% | 48,530 psi | 86% | 2612 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 86% | 47,906 psi | 85% | 2579 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 98% | 50,691 psi | 90% | 2661 fps | 98.2% |
| Ramshot TAC | <<locked>> | 82% | 49,603 psi | 88% | 2546 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 49,052 psi | 87% | 2562 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,940 psi | 64% | 1624 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 49,763 psi | 88% | 2559 fps | 97.7% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 48,631 psi | 86% | 2625 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 47,935 psi | 85% | 2657 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 48,718 psi | 86% | 2644 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 48,675 psi | 86% | 2664 fps | 98.8% |
| Rottweil R 901 | <<locked>> | 82% | 50,560 psi | 89% | 2513 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 49,995 psi | 88% | 2530 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 48,428 psi | 86% | 2559 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 92% | 48,950 psi | 87% | 2536 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 94% | 50,111 psi | 89% | 2566 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 49,879 psi | 88% | 2556 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 50,923 psi | 90% | 2562 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 50,662 psi | 90% | 2592 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 50,009 psi | 88% | 2618 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 47,950 psi | 85% | 2523 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 48,892 psi | 86% | 2549 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 50,807 psi | 90% | 2474 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 50,865 psi | 90% | 2474 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 50,256 psi | 89% | 2520 fps | 97.2% |
| Somchem S335 | <<locked>> | 84% | 50,241 psi | 89% | 2474 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 50,778 psi | 90% | 2566 fps | 99.8% |
| Somchem S355 | <<locked>> | 90% | 48,849 psi | 86% | 2559 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 49,443 psi | 87% | 2664 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 46,137 psi | 82% | 2549 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 84% | 51,082 psi | 90% | 2464 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 49,487 psi | 87% | 2500 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 50,270 psi | 89% | 2513 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 49,937 psi | 88% | 2539 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 50,879 psi | 90% | 2612 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 82% | 49,922 psi | 88% | 2533 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 48,370 psi | 86% | 2510 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 50,024 psi | 88% | 2618 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,177 psi | 75% | 2556 fps | 98.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 51,155 psi | 90% | 2595 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 49,676 psi | 88% | 2575 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 48,950 psi | 87% | 2625 fps | 97.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,606 psi | 61% | 2487 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 84% | 48,617 psi | 86% | 2559 fps | 99.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 41,176 psi | 73% | 2382 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 45,934 psi | 81% | 2448 fps | 95.3% |
| Accurate 3100 | <<locked>> | 98% | 37,579 psi | 66% | 2405 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 38,928 psi | 69% | 2379 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 32,518 psi | 57% | 2310 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 44,556 psi | 79% | 2480 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 37,956 psi | 67% | 2343 fps | 97.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,615 psi | 82% | 2487 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 47,094 psi | 83% | 2474 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,480 psi | 72% | 2513 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,579 psi | 66% | 2365 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,277 psi | 71% | 2421 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 84% | 33,141 psi | 59% | 2326 fps | 95.5% |
| Alliant Reloder-17 | 39.9 gr | 80% | 32,430 psi | 57% | 2336 fps | 97.1% |
| Alliant Reloder-23 | <<locked>> | 90% | 28,471 psi | 50% | 2234 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 94% | 34,867 psi | 62% | 2454 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,685 psi | 77% | 2487 fps | 98.5% |
| Bofors RP3 | <<locked>> | 80% | 37,101 psi | 66% | 2369 fps | 98.9% |
| Bofors RP7 | <<locked>> | 90% | 46,093 psi | 81% | 2490 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,469 psi | 80% | 2510 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,898 psi | 67% | 2369 fps | 96.5% |
| Hodgdon H414 | <<locked>> | 90% | 42,786 psi | 76% | 2516 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 90% | 46,601 psi | 82% | 2533 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 44,947 psi | 79% | 2490 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,485 psi | 50% | 2182 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,901 psi | 72% | 2467 fps | 99.5% |
| Hodgdon Superformance | 48.5 gr | 92% | 45,716 psi | 81% | 2589 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,440 psi | 47% | 1417 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,207 psi | 76% | 2448 fps | 99.4% |
| IMR 3031 | <<locked>> | 80% | 44,628 psi | 79% | 2484 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,827 psi | 70% | 2375 fps | 98.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,322 psi | 75% | 2392 fps | 95.3% |
| IMR 4350 | <<locked>> | 92% | 43,381 psi | 77% | 2464 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 86% | 42,380 psi | 75% | 2421 fps | 95.2% |
| IMR 4831 | <<locked>> | 84% | 31,546 psi | 56% | 2270 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 41,234 psi | 73% | 2451 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 80% | 46,615 psi | 82% | 2487 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 43,816 psi | 77% | 2464 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,715 psi | 79% | 2421 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 39,827 psi | 70% | 2379 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 36,825 psi | 65% | 2323 fps | 95.2% |
| Lovex S070 | <<locked>> | 90% | 42,148 psi | 75% | 2448 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 43,743 psi | 77% | 2438 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 43,990 psi | 78% | 2444 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,639 psi | 70% | 2411 fps | 98.6% |
| Norma URP | <<locked>> | 84% | 33,083 psi | 58% | 2316 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 39,189 psi | 69% | 2425 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 90% | 39,247 psi | 69% | 2454 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 46,514 psi | 82% | 2497 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,992 psi | 81% | 2513 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,934 psi | 48% | 1453 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,930 psi | 72% | 2405 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,206 psi | 75% | 2516 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,534 psi | 61% | 2398 fps | 99.6% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 34,563 psi | 61% | 2379 fps | 95.6% |
| ReloadSwiss RS 70 | 44.5 gr | 88% | 37,101 psi | 66% | 2438 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 47,659 psi | 84% | 2470 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,481 psi | 73% | 2392 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 34,983 psi | 62% | 2316 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 90% | 46,093 psi | 81% | 2490 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 84% | 36,825 psi | 65% | 2323 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,816 psi | 77% | 2464 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,827 psi | 70% | 2379 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 90% | 42,148 psi | 75% | 2448 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,766 psi | 63% | 2359 fps | 97.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,889 psi | 79% | 2474 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,888 psi | 76% | 2451 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,947 psi | 79% | 2388 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,376 psi | 66% | 2267 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 41,220 psi | 73% | 2369 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 44,686 psi | 79% | 2392 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,498 psi | 79% | 2467 fps | 99.3% |
| Somchem S355 | <<locked>> | 80% | 35,882 psi | 63% | 2323 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 26,005 psi | 46% | 2165 fps | 95.7% |
| Somchem S385 | <<locked>> | 98% | 43,439 psi | 77% | 2503 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 45,252 psi | 80% | 2382 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,959 psi | 72% | 2372 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,655 psi | 74% | 2382 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,055 psi | 60% | 2264 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 84% | 34,447 psi | 61% | 2316 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 46,673 psi | 83% | 2484 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 39,972 psi | 71% | 2372 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 33,939 psi | 60% | 2316 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 90% | 30,443 psi | 54% | 2303 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,182 psi | 53% | 2195 fps | 96.3% |
| Winchester 748 | <<locked>> | 80% | 46,427 psi | 82% | 2526 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 42,786 psi | 76% | 2516 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 94% | 28,500 psi | 50% | 2300 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,569 psi | 75% | 2457 fps | 99.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 89 powders for 7 x 57 loaded with the .284 | 160gr | NorthFork Bonded Core. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,680 fps; across all powders the maximum-charge window runs from 1,588 fps to 2,680 fps. Accurate 3100 gives the best case fill at 100 %, and 89 of the 89 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for 7 x 57 with the .284 | 160gr | NorthFork Bonded Core they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.